District of



(No Model.)

W. W. BRIGG.

LEATHER CUTTER.

No. 273,019. Patented Feb.27, 1883.

UNITED STATES PATENT Erica.

WILLIAM W. BRIGG, OF WASHINGTON, DISTRICT OFQGOLUMBIA, ASSIGNOR OFONE-HALF TO PHILIP FELIX HERWIG, OF NEW ORLEANS, LOUISIANA.

LEATHER-CUTTER.

SPECIFICATION forming part of Letters Patent No. 273,019, dated February27', 1883.

Application filed December 22, 1882. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM W. Bruce, a citizen of the United States ofAmerica, residing at Washington, in the District of Columbia, haveinvented certain new and useful Improvements in Leather-Gutters, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

My invention relates to certain improve- [0 ments in devices for formingthe leather strips or brushes used in my improvementin cottongins,patented October 25, 1879; and the novelty consists in the constructionand arrangement of parts, as will be more fully hereinafter set forth,and specifically pointed out in the claims.

This invention embodies improvements on or modifications of the devicefor which an application for a patent is filed by me of even date withthis application; and it has for its object, among others, to formbeveled surfaces near the edges of the material formed by theedge-slit-that is to say, the slit which extends into the material atright angles with the edge thereof.

The invention is fully illustrated in the accompanying drawings, whichform a part of this specification, and in which-- Figure l is aperspective view of my device complete, except that one of the jaws ofthe clamp is represented as broken away; Fig. 2, a front elevationwiththe guide-cap removed; Fig. 3, a perspective detail of thetransverse cutter, and Fig. 4 a detail view of the clamp 5 and itsadjoining parts.

Referring to the drawings, in which similar letters of referenceindicate like parts in all the figures, A and B represent twocross-levers, pivoted together at 00, the handles of which are 40 heldapart by the constant force of a spring, 2,

as shown. lhe leverA has ajaw, A, the upper face or bed, A, of which isinclined, and is provided with a longitudinal slot, I, which formsajunction'with a transverse slot, 0, at its cen- 5 ter, said transverseslot being formed between the head or jaw A and a removable guide'cap,C. A transverse horizontal slot, d, is also formed in the head, in whichslot reciprocates the carriage D, carrying the V-shaped or groovin gcutter F, a vertical cutter, F, being formed at the junction of thecutting-edges of the cutter. F. Properly pivoted to this carriage is anarm, D, which in tum is pivoted at d in cars (1 formed on the lever B,near its pivot.

Gr represents a clamp-lever, the handle of which extends to a pointreadily reached by the fingers of the operator, that is contiguous tothe handles of the levers A B, and it is provided with bifurcatedforward extremities, one of which is pivoted upon either side of the jawA at g, and the bearing or clamping jaw G of which is arranged over thelaterally-extending projections 61. of the jaw-face A Secured to the endof the jaw B, in a proper recess, by a screw, h, is the transversecutter 6 5 H, which is so curved as to accommodate it self to the arc ofits oscillation and the form of the transverse slot 0, and it isprovided with two inclined cutting-edges, 7L2, each being inclinedupwardly and outwardly from the cen- 7o tral point, at which is formedasmall cutter, 7L projecting inwardly at right angles to the transverseplane of the said cutter H. At or near the center of the cutter isformed a recess, h, the lower portions of which correspond with the formof the reciprocating cutter F and F.

It will be understood that in the operation of the device the edge ofthe leather or other material is inserted on the face A under the Soclamp G, and as the handles of the levers A and B are forced togetherthe knife-edges h cut the slit parallel to the edge of the material, andthe small cutter h makes a small slit at right angles thereto. As thehandles are further forced together the grooving or V- shaped cutter Fand the vertical cutter F, through their connections D and D, are put inmotion, and while the cutter F forms a V- shaped groove from the edge ofthe material inward, the cutter F cuts from the bottom of said grooveentirely through the material, and when said cutters have approached theslit formed by the cutter H the said cutter H has reached a point whichwill allow the cutters 5 F F to pass through the recess h, the cutter Fcoming fairly into the slit formed by the small cutter h on the knife H.By this operation it will be observed that each edge of the materialadjoining the edge-slit is beveled I00 down, both alike, and that allthe grooves are exactly alike, thus forming a much more effectual brushfor the purpose required than where the grooves are cut by hand in theusual manner.

As in the devices described in my other application referred to herein,itmay be necessary. to have the edge-slits of more or less length, andthis is readily provided for by employing a scale on the face A or byhaving the clamp adjust-able by changing the pivot g backward orforward, allowing the edge of the material to abut against the part g asagainst a gage, or by using rcmovablejaws of different sizes for theclamp.

As described, the operating means are confined to cross-levers; but itis obvious that the essential elements of the invention would beofequalserviceifthe other manipulatingmeans were employed.

Modifications in details of construction may be made without departingfrom the principle or sacrificing the advantages of my invention, theessential features of which have been fully described in connection withthe illustrations thereof.

By the use of this invention two or three days time of an expertmechanic can be saved on each and every gin in the application of mybefore-mentioned improvement on cottongins, as by the use of my cutterany novice or inexperienced plantation handcan prepare the leather stripor brushes with great rapidity and unfailingaccnracy and uniformity thatcannot be equaled by the most expert mechanic with the ordinaryappliances, which in the one hundred thousand gins to which its use isap plicable would save five hundred thousand dollars in labor alone inthe first application of my improvement, and a like sum every time saidstrips were renewed.

VVhatI claim as new is-- 1. In a cutting device, the combination, with agrooving-cutter constructed and arranged to cut a groove in the face ofthe article being operated on, of a knife working at an angle to themotion of the firstcutter and constructed and arranged'to cut off theend of the material removed troin the groove, and suitable means forgiving. motion to said cutter and knife, all substantially as described.

2. In a cutting device, a V-shaped cutter for making a groovesubstantially at right angles to the edges of the material, and avertical cutter for making a slit at the bottom of said groove, combinedwith means, substantially as described, for forcing such cutters throughthe material in one direction and means for retrograding them in theother, as set forth.

3. In a cutting device, a compound cutter composed of a \l-shaped cutterfor grooving and a vertical cutter for severing the material beneath thegroove, both formed in one piece, and constructed and adapted to serveas and for the purpose set forth.

4. In a cutting device, the reciprocating cutter having inclinedcutting-edges for forming a slit in the material substantially parallelwith the edge and a short slit at right angles therewith, orsubstantially so, combined with a compound reciprocating cutter forforming the edge-slit and beveling the edges of the material adjacent tosuch slit, and means for giving motion to said cutters, substantially asand for the purposes set forth.

5. In combination with the knife or cutter H, having inclinedcutting-edges 11, and cutter 7L3, arranged at right angles to thetransverse plane of said cutter, the compound cutter F F, the latteroperating in a line with the cutter k and the bed A having slots I andc, as

and for the purposes set forth.

6. The combination of the cutter H, having recess h and cutting-edges[L2 W, with the compound cutter F F and the bed A having slots I and c,as and for the purposes set forth.

7. In a cutting device, and in combination with the levers A B andknives H and F F, the clamps G, having handle G, arranged and adapted toserve as and for the purposes specified.

8. In a cutting device, and in combination with the pivoted levers A B,the jaw A, having vertical slots I and c and transverse slots d, thecarriage D, reciprocating compound cutter F F, arm D, and spring 2, forretrograding said cutter, as set forth.

9. The combination of the jaw A, having slots I, c, and 6?, arranged asshown, the carriage D, arm D, and compound cutter F F, with the jaw B,carrying cutter H, the clamp G G, and the spring 2, all constructedandarranged to serve as set forth.

In testimony whereof I affix my signature, in presence of two witnesses,this 18th day of Decem ber, 1882.

IVILLIAM 'W. BRIGG.

\Vifnesses:

CHARLES P. WEBSTER, CHARLES SMITH.

